https://www.manhattancontrarian.com/blog/2021-1-2-causation-of-climate-change-an
Let’s have yet another go at trying to apply the scientific method to the subject of causation of climate change. This is just basic logic, and not that complicated. We can do it.
As simple and basic as this is, you will shortly see that the agglomeration of all of the world’s leading “climate scientists” can’t figure it out. They are completely lost and befuddled. Check me and see if I’m wrong.
The proposition we are addressing is the one for which you see a constant drumbeat of advocacy. It runs something like, “the climate is changing, and we are the cause.” OK, nobody denies that the climate is changing; but how about the “we are the cause” part? What is the proof?
Let’s apply the scientific method. We start with the basic maxim that “correlation does not prove causation.” Instead, causation is established by disproof of all relevant alternative (“null”) hypotheses.
Everybody knows how this works from drug testing. We can’t prove that drug A cures disease X by administering drug A a thousand times and observing that disease X almost always goes away. Disease X might have gone away for other reasons, or on its own. Even if we administer drug A a million times, and disease X almost always goes away, we have only proved correlation, not causation. To prove causation, we must disprove the null hypothesis by testing drug A against a placebo. The placebo represents the null hypothesis that something else (call it “natural factors”) is curing disease X. When drug A is significantly more effective at curing disease X than the placebo, then we have disproved the null hypothesis, and established, at least provisionally, the effectiveness of drug A.
Back to climate change. The hypothesis is “humans are causing significant climate change.” An appropriate null hypothesis would be “observed climate change can be fully explained by some combination of natural factors.” How might you test this?